CN206830394U - A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump - Google Patents
A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump Download PDFInfo
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- CN206830394U CN206830394U CN201720735325.3U CN201720735325U CN206830394U CN 206830394 U CN206830394 U CN 206830394U CN 201720735325 U CN201720735325 U CN 201720735325U CN 206830394 U CN206830394 U CN 206830394U
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- swash plate
- pump
- plunger pump
- variable plunger
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Abstract
The utility model discloses a kind of electronic sensor to control plate variable plunger pump, it is related to plunger pump technique field, solve that the control sensitivity of existing hydraulic planger pump is low, motor usage ratio is low, and engine be present and build the pressure, the flow of pump and the technical problem of power can not be adjusted in client according to applying working condition.In plate variable plunger pump described in the utility model, swash plate is installed in housing, the angulation change of swash plate can change the output displacement of pump；Angle sensing equipment is connected by housing with swash plate, and the pivot angle for detecting swash plate changes；Pressure sensor is arranged at the pump discharge of plate variable plunger pump, for detecting the pressure at pump discharge；Speed probe is arranged on the junction of plate variable plunger pump and engine, for detecting the input speed of the plate variable plunger pump；Controller is connected with angle, pressure and speed probe respectively, and servo reversing valve is connected by electric proportional valve with controller, and servo reversing valve is used to control swash plate pivot angle.
Description
Technical field
Plunger pump technique field is the utility model is related to, more particularly to a kind of electronic sensor controls inclined disc type variable piston
Pump, hydraulic planger pump.
Background technology
Hydraulic axial plunger pump is an important device of hydraulic system, and it moves back and forth in cylinder body by plunger, made
The volume of seal operation cavity volume changes to realize oil suction, force feed；Plunger pump has that rated pressure is high, compact-sized, efficiency
The advantages that high and Flow-rate adjustment facilitates, it is widely used in the occasion that high pressure, big flow and flow need to adjust, such as hydraulic pressure
In machine, engineering machinery and ship.
The control structure such as engineering machinery field hydraulic planger pump at present, predominantly load-sensitive, invariable power, such control
Major defect is that control sensitivity is low, motor usage ratio is low, and engine be present and build the pressure, and client can not enter according to applying working condition
The defects of flow and power of row regulation pump.
Therefore, how a kind of sensitive plate variable plunger pump, hydraulic planger pump are provided, hair can be made full use of
Motivation power, and ensure that client can adjust the use power of pump temporarily according to operating mode, it has also become those skilled in the art need badly
The technical problem of solution.
Utility model content
The purpose of this utility model is that providing a kind of electronic sensor controls plate variable plunger pump, hydraulic planger pump,
Hydraulic planger pump of the prior art control sensitivity is low, motor usage ratio is low to solve, and engine be present and build the pressure, client
The flow of pump and the technical problem of power can not be adjusted according to applying working condition.
The utility model provides a kind of plate variable plunger pump, including：Housing, swash plate is installed in the housing, institute
The output displacement of the plate variable plunger pump can be changed by stating the angulation change of swash plate；Angle sensing equipment, the angle
Sensing device is connected by the housing with the swash plate, and the pivot angle that the angle sensing equipment is used to detect the swash plate becomes
Change；Pressure sensor, the pressure sensor are arranged at the pump discharge of the plate variable plunger pump, the pressure sensing
Device is used to detect the pressure at pump discharge；Speed probe, the speed probe are arranged on the plate variable plunger pump
With the junction of engine, the speed probe is used for the input speed for detecting the plate variable plunger pump, Ye Jisuo
State the output speed of engine；Controller, electric proportional valve and servo reversing valve, the controller fill with the angle sensor respectively
Put, the pressure sensor connects with the speed probe, the servo reversing valve passes through the electric proportional valve and the control
Device connection processed, the servo reversing valve are used to control swash plate pivot angle；The controller is used to integrate the angle sensing equipment, institute
Pressure sensor, the sensing control of the speed probe are stated, and by integrated computation compared with predetermined power, to obtain
Actual power output and pressure parameter, and the power output and the pressure parameter are fed back into electric ratio in the form of electric current
Example valve, the electric proportional valve automatically adjust the displacement of servo reversing valve according to the size of input current, change the swash plate pivot angle
Become, the final closed-loop control realized detecting, analyzing, calculating, feed back formation, ensure the outlet of the plate variable plunger pump
Flow, power output disclosure satisfy that the requirement of various applying working conditions.
Wherein, the controller includes the conversion of A/D and D/A signals and CPU, the CPU are used to control, computing, compared
And output signal；Parameter program mould corresponding with the power of the engine is preset with the control program of the controller
Block, the parameter program module include：Engine presets power and gear, and the different gears sets corresponding described oblique
The different rotating speeds of disc type Variable plunger pump.
Specifically, the controller is connected with client's input unit, and client can be according to actual use operating mode, to the swash plate
The power output of formula Variable plunger pump is adjusted.
Further, amplifier is additionally provided between the controller and the electric proportional valve, the amplifier is used to amplify
The input signal inputted in the controller, and export to the electric proportional valve.
During practical application, the pivot angle change of the swash plate is realized by piston；During specific assembling, one end of the swash plate with
Shifting block contact is set, and the shifting block is fixed on the piston, and the piston is respectively arranged on the left side and the right side different small of diameter
Chamber end and big chamber end, the one end at the big chamber end are provided with the discharge capacity adjusting screw being connected through a screw thread, the discharge capacity adjusting screw
For adjusting the displacement of the piston, to drive the shifting block to change the pivot angle of the swash plate.
Wherein, the swash plate is arranged in the housing by swash plate seat；During specific assembling, the swash plate seat passes through positioning
Pin is fixed to be supported and keeps flat in the housing, and the runway for being used for supporting and position the swash plate, institute are provided with the swash plate seat
The another side for stating swash plate is used to support plunger assembly, and the end face of the plunger assembly can be slided in the one side of the swash plate
It is dynamic.
Specifically, the angle sensing equipment is arranged between the swash plate and the housing, and by rotary pole with
Fixed conductor relatively rotates, and to produce induced-current, inputs to corresponding conversion receiver；During specific assembling, on the housing
Supporting pin is equipped with, one end and the driving lever of the supporting pin are fixed, and the endoporus of the other end of the supporting pin studs with two semicircles
Magnet and outside are fixed with fixed swivel nut, the supporting pin and the connection of the fixed swivel nut by screw on the housing
End face is provided with angular transducer；Conductor device is connected by screw thread with the fixed swivel nut.
Further, L1 loops are provided with the conductor device, the L1 loops include：Conductor, coil, signal detection dress
Put and output device of the electrical signal, the coil are wrapped on the conductor, the conductor is placed in two semicircle magnets；Institute
When stating supporting pin with conductor relative rotation, the signal supervisory instrument is used for detection signal, and defeated by the electric signal
Go out device output.
Further, alignment pin is inserted in the one end of the driving lever away from the supporting pin, and the alignment pin is fixed on
On the swash plate, and slided with the swash plate, when the swash plate produces motion, according to the track elements of the swash plate seat,
The driving lever rotates by the center of circle of the center of the supporting pin；, can when the swash plate is acted on by the shifting block produces rotation
The alignment pin is driven to rotate together, the alignment pin, which rotates, drives the driving lever to rotate, and the driving lever, which rotates, drives the branch
Pin is supportted to rotate, after the supporting pin rotates, two semicircle magnets can be formed with the conductor device to be deflected relatively, and
Electric current is produced in the L1 loops.
Relative to prior art, electronic sensor control plate variable plunger pump described in the utility model has following excellent
Gesture：
In electronic sensor control plate variable plunger pump provided by the utility model, using angle, pressure, revolution speed sensing
Detection, by controller integrated computation, is exported to electric proportional valve in the form of electric current, passes through electric proportional valve and servo reversing valve
Balance, the discharge capacity of pump is adjusted, and then being capable of quick meet demand；The contrast of the parameters such as the integrated rear and predetermined power of detection, can
Automatically adjust the discharge capacity of pump, the efficiency of elevator pump；Electric proportional valve is directly acted on using feedback, controls accurate high, high sensitivity；
Whole control process balances only with the servo reversing valve of a two-position three way with electric proportional valve, simple in construction；Voluntarily adjust pump
Using power, engine power is saved, avoid engine suppresses car；The control valve of pump is reduced, reduces abrasion, the leakage of valve,
The service efficiency of elevator pump；Using servo reversing valve and the discharge capacity of electric proportional valve balance controlling pump, high sensitivity, control accuracy
It is high；Regulating working conditions can be carried out according to the use demand of client, and it is simple to adjust process；Reduce each control valve inside pump, drop
Clamping stagnation caused by low control valve form, the interior failure such as let out.
The utility model also provides a kind of hydraulic planger pump, and the hydraulic planger pump is that the electronics described in any of the above-described passes
Sensing control plate variable plunger pump.
The hydraulic planger pump is had with above-mentioned electronic sensor control plate variable plunger pump relative to prior art
Dominant Facies it is same, will not be repeated here.
Herein it is emphasized that electronic sensor provided by the utility model control plate variable plunger pump and hydraulic column
Pump is filled in, swash plate pivot angle is checked using angle sensing equipment, calculates the discharge capacity of pump, while integrated rotating speed and pressure sensing control, collection
Into conversion and with parameter preset relatively after, output signal exports to electric proportional valve through amplifier, changes electric ratio as an electrical current
Valve displacement, balanced with advance set pressure, the pivot angle change of controlling pump, realize the change of pumpage, meet working condition requirement.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the principle schematic that the electronic sensor that the utility model embodiment provides controls plate variable plunger pump；
Fig. 2 is the control flow signal that the electronic sensor that the utility model embodiment provides controls plate variable plunger pump
Figure；
Fig. 3 is the structural representation that the electronic sensor that the utility model embodiment provides controls plate variable plunger pump；
Fig. 4 is that the electronic sensor that the utility model embodiment provides controls angle sensing equipment in plate variable plunger pump
Control structure schematic diagram；
Fig. 5 is that the electronic sensor that the utility model embodiment provides controls induction of signal in plate variable plunger pump to transmit
Schematic diagram.
In figure：1- housings；2- swash plate seats；3- swash plates；4- plunger assemblies；5- angle sensing equipments；51- is positioned
Pin；52- driving levers；53- supporting pins；54- fixes swivel nut；55- conductor devices；551- conductors；552- coils；553- believes
Number detection means；554- output device of the electrical signal；56- angular transducers；57- semicircle magnets；6- cylinder bodies；7- pistons；
71- shifting blocks；72- discharge capacity adjusting screws；8- electric proportional valves；9- servo reversing valves；91- holddown springs；92- reversal valves
Core；93- valve bodies；94- commutation valve spring retainers；95- adjusts spring；96- adjusting screws；11- pressure sensors；12- turns
Fast sensor；13- controllers；15- amplifiers；16- parameter program modules；17- client's input unit；21- predetermined powers
Curve；The small chamber ends of S1-；The big chamber ends of S2-.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is the principle schematic that the electronic sensor that the utility model embodiment provides controls plate variable plunger pump；
Fig. 2 is the control flow schematic diagram that the electronic sensor that the utility model embodiment provides controls plate variable plunger pump；Fig. 3 is
The structural representation for the electronic sensor control plate variable plunger pump that the utility model embodiment provides.
As shown in Figure 1-Figure 3, the utility model embodiment provides a kind of electronic sensor control plate variable plunger pump,
Including：Housing 1, swash plate 3 is provided with housing 1, and the angulation change of swash plate 3 can change the output row of plate variable plunger pump
Amount；Angle sensing equipment 5, angle sensing equipment 5 are connected by housing 1 with swash plate 3, and angle sensing equipment 5 is used to detect swash plate 3
Pivot angle change；Pressure sensor 11, pressure sensor 11 are arranged at the pump discharge of plate variable plunger pump, pressure sensing
Device 11 is used to detect the pressure at pump discharge；Speed probe 12, speed probe 12 be arranged on plate variable plunger pump with
The junction of engine, speed probe 12 are used to detecting the input speed of plate variable plunger pump, namely engine is defeated
Go out rotating speed；Controller 13, electric proportional valve 8 and the servo reversing valve 9 for balancing electric proportional valve 8, controller 13 respectively with angle
Degree sensing device 5, pressure sensor 11 and speed probe 12 connect, and servo reversing valve 9 passes through electric proportional valve 8 and controller 13
Connection, servo reversing valve 9 are used to control swash plate pivot angle；Controller 13 be used for integrated angle sensing device 5, pressure sensor 11,
The sensing control of speed probe 12, and by integrated computation compared with predetermined power, to obtain actual power output
And pressure parameter, and power output and pressure parameter are fed back into electric proportional valve 8 in the form of electric current, electric proportional valve 8 is according to defeated
The size for entering electric current automatically adjusts the displacement of servo reversing valve 9, changes the pivot angle of swash plate 3, it is final realize to detect, analyze, in terms of
Calculate, the closed-loop control that feedback is formed, ensure that the rate of discharge of plate variable plunger pump, power output disclosure satisfy that various uses
The requirement of operating mode.
Relative to prior art, the electronic sensor control plate variable plunger pump described in the utility model embodiment has
Following advantage：
In the electronic sensor control plate variable plunger pump that the utility model embodiment provides, using angle, pressure, turn
Fast sensing detection, by controller integrated computation, export to electric proportional valve, changed by electric proportional valve and servo in the form of electric current
To the balance of valve, the discharge capacity of pump is adjusted, and then being capable of quick meet demand；Pair of the parameters such as the integrated rear and predetermined power of detection
Than the discharge capacity of pump, the efficiency of elevator pump can be automatically adjusted；Electric proportional valve is directly acted on using feedback, controls accurate high, spirit
Sensitivity is high；Whole control process balances only with the servo reversing valve of a two-position three way with electric proportional valve, simple in construction；Voluntarily
Adjustment pump uses power, saves engine power, avoid engine suppresses car；Reduce pump control valve, reduce valve abrasion,
Leakage, the service efficiency of elevator pump；Using servo reversing valve and the discharge capacity of electric proportional valve balance controlling pump, high sensitivity, control
Precision is high；Regulating working conditions can be carried out according to the use demand of client, and it is simple to adjust process；Reduce each control inside pump
Valve, reduce clamping stagnation caused by control valve form, the interior failure such as let out.
During practical application, as shown in Figure 1-Figure 3, angle sensing equipment 5 detects that the pivot angle of swash plate 3 is α, pressure sensing
Device 11 detects that the pressure at pump discharge is P, and speed probe 12 detects that the input speed of pump is n, the automatic row for calculating pump
Measure V：
D in above formulapFor diameter of plunger, Z is number of plungers, and S is the stroke that pump connects plunger when main shaft rotation is turned around, and D is
Cylinder body plunger hole reference diameter, α are swash plate and the deflection angle in vertical direction, and V is that pump rotation excludes fluid when turning around
Volume；Wherein dp, S, Z, D fixed fixed value when being designed for pump；To realize pumpage V change, swash plate deflection need to be changed
Angle [alpha], pumpage V change can adjust the input power P of pumpn：
N is pump input speed in above formula, and Δ P is that pump discharge pressure is poor with inlet pressure, is directly disposed as pump discharge herein
Pressure P, η are the gross efficiency of pump.
Wherein, as shown in Fig. 2 controller 13 include A/D and D/A signals conversion and CPU, CPU be used for control, computing,
Compare simultaneously output signal；Parameter program module corresponding with the power of engine is preset with the control program of controller 13
16, parameter program module 16 includes：Engine presets power and gear, and different gears sets corresponding inclined disc type variable post
Fill in the different rotating speeds of pump.Angle sensing equipment 5 detects the pivot angle α of swash plate 3, and pressure sensor 11 detects the pressure at pump discharge
Power P, speed probe 12 detect the input speed n of pump, are changed by A/D conversions, CPU computings and the D/A in controller 13,
And pass through amplifier 15, signal is inputted to electric proportional valve 8, electric proportional valve 8 servo reversing valve 9 is controlled according to the electric signal of input
Displacement, change swash plate 3 pivot angle α, realize the change of pumpage, change the power output and flow of pump, if hydraulic pump use
Power PkAnd rotating speed n changes, angle sensing equipment 5 detects the swash plate pivot angle α of pump, pressure sensor 11 detects the outlet of pump
The rotating speed n that pressure P, speed probe 12 detect pump again feeds back to detection numerical value in controller 13, and whole process repeats not
The calculating stopped and feedback, meet the various change of client's applying working condition.
It should be added that, preset output area (predetermined power curve 21, the engine gears of power herein
During n, engine minimum power input Pn0, maximal input Pn1), the relation of engine gears and engine work(rotating speed n, (such as
1 grade of corresponding rotating speed n1,5 grades of corresponding rotating speed n5), engine is directly connected to pump, and engine speed is pump input speed n, often
The program that individual engine gears correspond to the predetermined power curve 21 of an engine is set；Rotational speed sequence set in advance, hair
The each gear of motivation corresponds to a rotating speed n, and rotating speed allows have certain deviation under different stalls, will not be adjusted in deviation range
Engine speed.Namely under some rotating speed, engine output Pn, engine power is equipped with maximum under each gear
Value Pn1And minimum value Pn0Export-restriction.
Specifically, as shown in Fig. 2 controller 13 is connected with client's input unit 17, client can according to actual use operating mode,
Engine output is adjusted.Such as the increase of customer demand power, client's input unit 17 is can adjust, is inputted to controller
In 13, controller 13 according to client's input unit 17, can increase the power output of engine, but peak power output is not more than
Engine corresponding peak power output P under n gearsn1, minimum output power not less than engine under n gears corresponding to most
Small power output Pn0。
Further, as shown in Fig. 2 being additionally provided with amplifier 15 between controller 13 and electric proportional valve 8, amplifier 15 is used for
Amplify the input signal in input controller 13, and export to electric proportional valve 8.Amplifier 15 and the proportionate relationship of electric proportional valve 8 are pre-
First debugging is completed, and when the output signal of amplifier 15, which exceedes electric proportional valve 8, controls the signal of maximum displacement, electric proportional valve 8 exports
For maximum displacement；On the contrary, when the output signal of amplifier 15 controls the signal of initial displacement less than electric proportional valve 8, electric proportional valve 8
Output displacement is initial displacement.
It should be added that, input function E (s) includes parameter F (α), F (p), F (n), and corresponding angle passes respectively herein
The revolution speed that pump discharge pressure P, the speed probe 12 that swash plate pivot angle α, the pressure sensor 11 of the detection of induction device 5 detect detect
N respective function；Wherein F (α) output is the discharge capacity of pump, i.e.,：
F (p)=P；
F (n)=n；
Input function is inputted into controller 13, with the power P under default respective notchn, rotating speed n and client input and carry out
Compare, the input relative importance value of client is more than the default power parameter of program, but must be in the peak power and least work of the gear
In the range of rate, otherwise exported according to peak power under the gear or minimum power.
During practical application, as shown in Figure 1-Figure 3, the pivot angle change of swash plate 3 is realized by piston 7；During specific assembling, tiltedly
One end of disk 3 contacts setting with shifting block 71, and shifting block 71 is fixed on piston 7, and piston 7 is respectively arranged on the left side and the right side diameter difference
Small chamber end S1 and big chamber end S2, big chamber end S2 one end be provided with the discharge capacity adjusting screw 72 that is connected through a screw thread, discharge capacity regulation
Screw 72 is used for the displacement of regulating piston 7, to drive shifting block 71 to change the pivot angle of swash plate 3, so as to change the output displacement of pump.
It should be added that, angle sensing equipment 5 detects the pivot angle α of swash plate 3 herein, and pressure sensor 11 detects pump
The pressure P in exit, speed probe 12 detects the input speed n of pump, and is extremely controlled with F (α), F (p), F (n) input respectively
Device 13 processed；Changed through A/D and compared with 16 default parameter of parameter program module, if actually detected pump discharge pressure P and
Corresponding power PnThe power curve maximum P under respective notch in parameter program module 16n1With minimum value Pn0Between, if passing through
Client's input unit 17 is adjusted, and increases pump power output, is calculated and is compared by controller 13, is reduced output signal, is changed through D/A
Signal, amplifier 15 amplify electric signal, reduce the electric signal of electric proportional valve 8, promote the reversing valve core 92 of servo reversing valve 9 to the right
It is mobile, reduce the big chamber end S2 of piston 7 high-voltage oil liquid ratio, promote piston 7 to move right, increase the pivot angle α of swash plate 3, it is defeated
Go out discharge capacity increase, power output increase, realize customer demand.If the power in F (α), F (p), F (n) input to controller 13
Bigger than parameter preset, then controller 13 can only reduce power output signal, increase output signal, through D/A conversion signals, amplifier
15 amplification electric signals, increase the electric signal of electric proportional valve 8, promote reversing valve core 92 to be moved to the left, make the big chamber end S2's of piston 7
High-voltage oil liquid ratio subtracts increase, promotes piston 7 to be moved to the left, and reduces the pivot angle α of swash plate 3, and output displacement reduces, and power output subtracts
It is small.
In addition, during practical set, as shown in figure 3, one end of reversing valve core 92 can be resisted against electricity by holddown spring 91
One end of proportioning valve 8, the other end of reversing valve core 92 can be connected on commutation valve spring retainer 94, and the valve spring retainer 94 that commutates
One end away from reversing valve core 92 can be connected with regulation spring 95, the one end of the regulation spring 95 away from commutation valve spring retainer 94
It can be connected with adjusting screw 96.
Wherein, as shown in figure 3, swash plate 3 can be arranged in housing 1 by swash plate seat 2；During specific assembling, swash plate seat 2 is logical
Cross alignment pin 51 to fix support and keep flat in housing 1, the runway for being used for supporting and position swash plate 3, swash plate are provided with swash plate seat 2
3 another side is used to support plunger assembly 4, and the end face of plunger assembly 4 can be slided in the one side of swash plate 3, so as to tiltedly
The angulation change of disk 3 can change the axial displacement of plunger assembly 4.Preferably, plunger assembly 4 is evenly distributed on cylinder body 6
In hole.
Fig. 4 is that the electronic sensor that the utility model embodiment provides controls angle sensing equipment in plate variable plunger pump
Control structure schematic diagram.
Specifically, as shown in figure 4, angle sensing equipment 5 is arranged between swash plate 3 and housing 1, and by rotary pole with
Fixed conductor relatively rotates, and to produce induced-current, inputs to corresponding conversion receiver；During specific assembling, worn on housing 1
There is supporting pin 53, one end and the driving lever 52 of supporting pin 53 are fixed, and the endoporus of the other end of supporting pin 53 studs with two semicircle magnets
57 and outside be fixed with fixed swivel nut 54 on housing 1 by screw, supporting pin 53 on the connecting end surface of fixed swivel nut 54 with setting
Angled sensor 56；Conductor device 55 is connected by screw thread with fixed swivel nut 54.
Fig. 5 is that the electronic sensor that the utility model embodiment provides controls induction of signal in plate variable plunger pump to transmit
Schematic diagram.
Further, as shown in figure 5, being provided with L1 loops in conductor device 55, the L1 loops include：Conductor 551, coil
552nd, signal supervisory instrument 553 and output device of the electrical signal 554, coil 552 are wrapped on conductor 551, and conductor 551 is placed in two
In semicircle magnet 57；When supporting pin 53 relatively rotates with conductor 551, signal supervisory instrument 553 is used for detection signal, and passes through electricity
Signal output apparatus 554 exports.Supporting pin 53 can form Double-directional rotary clockwise or counterclockwise with conductor 551, pass through signal
Detection means 553 may determine that the direction of rotation of supporting pin 53.
Further, as shown in Figure 4 and Figure 5, alignment pin 51 is inserted in the one end of driving lever 52 away from supporting pin 53, and positions
Pin 51 is fixed on swash plate 3, and is slided with swash plate 3, when swash plate 3 produces motion, according to the track elements of swash plate seat 2, is dialled
Bar 52 rotates by the center of circle of the center of supporting pin 53；When swash plate 3 is stressed generation rotation, alignment pin 51 can be driven to turn together
Dynamic, alignment pin 51, which rotates, drives driving lever 52 to rotate, and driving lever 52, which rotates, drives supporting pin 53 to rotate, after supporting pin 53 rotates, two
Semicircle magnet 57 can form relative deflection with conductor device 55, and produce electric current in above-mentioned L1 loops, and pass through electric signal
Output device 554 is to input function F (α).
The utility model embodiment also provides a kind of hydraulic planger pump, and the hydraulic planger pump is the electricity described in any of the above-described
Sub- sensing control plate variable plunger pump.
In the hydraulic planger pump that the utility model embodiment provides, detected using angle, pressure, revolution speed sensing, pass through control
Device integrated computation processed, is exported to electric proportional valve in the form of electric current, by the balance of electric proportional valve and servo reversing valve, adjusts pump
Discharge capacity, and then being capable of quick meet demand；The contrast of the parameters such as the integrated rear and predetermined power of detection, can automatically adjust pump
Discharge capacity, the efficiency of elevator pump；Electric proportional valve is directly acted on using feedback, controls accurate high, high sensitivity；Whole control process
Balanced only with the servo reversing valve and electric proportional valve of a two-position three way, it is simple in construction；Voluntarily adjustment pump uses power, saves
Engine power, avoid engine suppresses car；The control valve of pump is reduced, reduces abrasion, the leakage of valve, the use effect of elevator pump
Rate；It is high using servo reversing valve and the discharge capacity of electric proportional valve balance controlling pump, high sensitivity, control accuracy；Can be according to client
Use demand carry out regulating working conditions, and adjust process it is simple；Each control valve inside pump is reduced, control valve form is reduced and causes
Clamping stagnation, the interior failure such as let out.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (10)
1. a kind of electronic sensor controls plate variable plunger pump, it is characterised in that including：
Housing (1), the housing (1) is interior to be provided with swash plate (3), and the angulation change of the swash plate (3) can change the swash plate
The output displacement of formula Variable plunger pump；
Angle sensing equipment (5), the angle sensing equipment (5) is connected by the housing (1) with the swash plate (3), described
Angle sensing equipment (5) is used for the pivot angle change for detecting the swash plate (3)；
Pressure sensor (11), the pressure sensor (11) are arranged at the pump discharge of the plate variable plunger pump, institute
Pressure sensor (11) is stated to be used to detect the pressure at pump discharge；
Speed probe (12), the speed probe (12) are arranged on the connection of the plate variable plunger pump and engine
Place, input speed of the speed probe (12) for detecting the plate variable plunger pump, namely the engine
Output speed；
Controller (13), electric proportional valve (8) and servo reversing valve (9), the controller (13) fill with the angle sensor respectively
Put (5), the pressure sensor (11) and the speed probe (12) connection, the servo reversing valve (9) and pass through the electricity
Proportioning valve (8) is connected with the controller (13), and the servo reversing valve (9) is used to control swash plate pivot angle；
The controller (13) is used to integrate the angle sensing equipment (5), the pressure sensor (11), the revolution speed sensing
The sensing control of device (12), and by integrated computation compared with predetermined power, to obtain actual power output and pressure
Parameter, and the power output and the pressure parameter are fed back into electric proportional valve (8), the electric proportional valve in the form of electric current
(8) displacement of servo reversing valve (9) is automatically adjusted according to the size of input current, changes the swash plate (3) pivot angle, it is final real
The now closed-loop control detecting, analyzing, calculating, feed back formation, ensure rate of discharge, the output of the plate variable plunger pump
Power disclosure satisfy that the requirement of various applying working conditions.
2. electronic sensor according to claim 1 controls plate variable plunger pump, it is characterised in that the controller
(13) include the conversion of A/D and D/A signals and CPU, the CPU are used to controlling, computing, compared and output signal；
Parameter program module corresponding with the power of the engine is preset with the control program of the controller (13)
(16), the parameter program module (16) includes：Engine presets power and gear, and the different gears sets corresponding
The different rotating speeds of the plate variable plunger pump.
3. electronic sensor according to claim 1 or 2 controls plate variable plunger pump, it is characterised in that the control
Device (13) is connected with client's input unit (17), and client can be according to actual use operating mode, to the plate variable plunger pump
Power output is adjusted.
4. electronic sensor according to claim 1 controls plate variable plunger pump, it is characterised in that the controller
(13) amplifier (15) is additionally provided between the electric proportional valve (8), the amplifier (15), which is used to amplify, inputs the control
Input signal in device (13), and export to the electric proportional valve (8).
5. electronic sensor according to claim 1 controls plate variable plunger pump, it is characterised in that the swash plate (3)
Pivot angle change by piston (7) realize；
During specific assembling, one end of the swash plate (3) contacts setting with shifting block (71), and the shifting block (71) is fixed on the piston
(7) on, the piston (7) is respectively arranged on the left side and the right side the different small chamber end (S1) of diameter and big chamber end (S2), the big chamber
The one end at end (S2) is provided with the discharge capacity adjusting screw (72) being connected through a screw thread, and the discharge capacity adjusting screw (72) is used to adjust institute
The displacement of piston (7) is stated, to drive the shifting block (71) to change the pivot angle of the swash plate (3).
6. electronic sensor according to claim 5 controls plate variable plunger pump, it is characterised in that the swash plate (3)
It is arranged on by swash plate seat (2) in the housing (1)；
During specific assembling, the swash plate seat (2) is fixed by alignment pin supports and keeps flat, the swash plate interior into the housing (1)
The runway for being used for supporting and position the swash plate (3) is provided with seat (2), the another side of the swash plate (3) is used to support plunger
Component (4), and the end face of the plunger assembly (4) can be slided in the one side of the swash plate (3).
7. electronic sensor according to claim 6 controls plate variable plunger pump, it is characterised in that the angle sensor
Device (5) is arranged between the swash plate (3) and the housing (1), and is relatively rotated by rotary pole and fixed conductor, with
Induced-current is produced, is inputted to corresponding conversion receiver；
During specific assembling, supporting pin (53) is equipped with the housing (1), one end of the supporting pin (53) and driving lever (52) are solid
It is fixed, the endoporus of the other end of the supporting pin (53) stud with two semicircle magnets (57) and outside by screw in the housing
(1) fixed swivel nut (54) is fixed with, the connecting end surface of the supporting pin (53) and the fixed swivel nut (54) is provided with angle
Sensor (56)；Conductor device (55) is connected by screw thread with the fixed swivel nut (54).
8. electronic sensor according to claim 7 controls plate variable plunger pump, it is characterised in that the conductor device
(55) L1 loops are provided with, the L1 loops include：Conductor (551), coil (552), signal supervisory instrument (553) and electric signal
Output device (554), the coil (552) are wrapped on the conductor (551), and the conductor (551) is placed in two described half
In circle magnet (57)；
When the supporting pin (53) relatively rotates with the conductor (551), the signal supervisory instrument (553), which is used to detect, believes
Number, and exported by the output device of the electrical signal (554).
9. electronic sensor according to claim 8 controls plate variable plunger pump, it is characterised in that the driving lever (52)
Alignment pin (51) is inserted in one end away from the supporting pin (53), and the alignment pin (51) is fixed on the swash plate (3), and
Slided with the swash plate (3), it is described according to the track elements of the swash plate seat (2) when the swash plate (3) produces motion
Driving lever (52) rotates by the center of circle of the center of the supporting pin (53)；
When the swash plate (3) is acted on by the shifting block (71) produces rotation, the alignment pin (51) can be driven to rotate together,
The alignment pin (51), which rotates, drives the driving lever (52) to rotate, and the driving lever (52), which rotates, drives the supporting pin (53) to turn
Dynamic, after the supporting pin (53) rotates, two semicircle magnets (57) can form relatively inclined with the conductor device (55)
Turn, and electric current is produced in the L1 loops.
10. a kind of hydraulic planger pump, it is characterised in that the hydraulic planger pump is any one of such as above-mentioned claim 1-9 institute
The electronic sensor control plate variable plunger pump stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720735325.3U CN206830394U (en) | 2017-06-22 | 2017-06-22 | A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720735325.3U CN206830394U (en) | 2017-06-22 | 2017-06-22 | A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830394U true CN206830394U (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720735325.3U Withdrawn - After Issue CN206830394U (en) | 2017-06-22 | 2017-06-22 | A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump |
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| Country | Link |
|---|---|
| CN (1) | CN206830394U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084107A (en) * | 2017-06-22 | 2017-08-22 | 杭州力龙液压有限公司 | A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump |
| CN110685879A (en) * | 2019-10-09 | 2020-01-14 | 太原理工大学 | Variable mechanism of oblique axis type plunger pump for continuously and proportionally adjusting flow |
| CN111779663A (en) * | 2020-06-28 | 2020-10-16 | 浙江大学 | Variable control characteristic working condition simulation real-time detection system and method for swash plate type variable axial plunger pump |
| CN112901438A (en) * | 2020-12-30 | 2021-06-04 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Electric control type constant power electric pump |
-
2017
- 2017-06-22 CN CN201720735325.3U patent/CN206830394U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084107A (en) * | 2017-06-22 | 2017-08-22 | 杭州力龙液压有限公司 | A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump |
| CN107084107B (en) * | 2017-06-22 | 2019-10-18 | 杭州力龙液压有限公司 | A kind of electronic sensor control plate variable plunger pump, hydraulic planger pump |
| CN110685879A (en) * | 2019-10-09 | 2020-01-14 | 太原理工大学 | Variable mechanism of oblique axis type plunger pump for continuously and proportionally adjusting flow |
| CN110685879B (en) * | 2019-10-09 | 2021-02-26 | 太原理工大学 | Variable mechanism of oblique axis type plunger pump for continuously and proportionally adjusting flow |
| CN111779663A (en) * | 2020-06-28 | 2020-10-16 | 浙江大学 | Variable control characteristic working condition simulation real-time detection system and method for swash plate type variable axial plunger pump |
| CN111779663B (en) * | 2020-06-28 | 2021-04-20 | 浙江大学 | Variable control characteristic working condition simulation real-time detection system and method for swash plate type variable axial plunger pump |
| CN112901438A (en) * | 2020-12-30 | 2021-06-04 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Electric control type constant power electric pump |
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Granted publication date: 20180102 Effective date of abandoning: 20191018 |